What changed in Pokémon GO, and when.

Zygarde Cells found on a Route are awarded when you complete the Route instead of being picked up from the map. The same update merged the compass and weather icons, added a confirmation before transferring a Pokémon with maxed-out stats, and spread out spawns, Gyms, Power Spots and PokéStops that overlapped on the map.

Balloons, which used to arrive about every six hours, became far rarer at the start of Twilight Trails, with players reporting about one a day. There was no announcement; on September 11 Scopely confirmed the reduction is intentional and said balloons may still come more often during takeovers and other events.

From Twilight Trails, Great, Ultra and Master League each run a Mega Edition in which Mega-Evolved Pokémon can battle.

With the new PvP battle system fully rolled out, the previous system and the Competitors Cup that ran on it were switched off.

Pokémon that can reach the Super Max Mega Level know an additional Charged Attack while Mega-Evolved, such as Outrage+ on Mega Dragonite, at any Mega Level. Its power grows with the Mega Level.

A built-in feature for Trainers level 20 and up that throws Poké Balls and spins PokéStops while the app is closed, with daily limits. It cannot be active at the same time as a paired GO Plus +. The rollout is phased.

You still cannot join a raid with full Pokémon storage, but if storage fills up during the raid you now get the catch encounter anyway, going one over the limit. It used to be lost.

The most Pokémon storage, item storage and Postcard storage you can buy each went up by 1,000.

A calendar button on the map lists current and upcoming events and community meetups. Today View was trimmed to your daily goals.

PvP battles now resolve damage at the end of each turn, award energy at the same moment, and keep going if a player disconnects.

Spotlight Hour came back, Thursdays from 6 to 7 p.m. local time. Friendship Friday gained up to two extra Special Trades at 20% less Stardust, and Max Monday gave a Rare Candy XL for in-person Max Battles.

Double-Time Sunday became Scenic Sunday, with more Pokémon along Routes.

The most Mega Energy you can hold for one Pokémon went from 10,000 to 50,000, for every Mega, not only those that can reach Super Max.

Pokémon with two Mega Evolutions now track each one's Mega Level separately, and Charizard needs separate Mega Energy for Mega Charizard X and Mega Charizard Y.

You can spend extra Mega Energy to raise a Pokémon's Mega Level straight away instead of waiting out the daily cooldown between Mega Evolutions.

The speed bonus at the end of a raid now gives fewer Premier Balls, for example 4 instead of 6 for the fastest wins. The damage, Gym control and friendship bonuses are unchanged.

Every Thursday the GO Battle League limit goes from 5 to 10 sets, a total of 50 battles. The limit on other days stays at 5 sets.

Only better raid and Egg Shiny odds were announced. Player data then showed every wild Pokémon at 1 in 512, including wild Legendaries (1 in 20 before) and species that had a permanent 1 in 64 boost; Indeedee, Charcadet and Spinda were the only exceptions found.

Weekend events moved to Saturdays and paid event tickets gave way to event GO Passes. Any evolved Pokémon in the wild can now be Shiny once its Shiny has debuted, raids and Eggs give better Shiny odds than the wild, and Team GO Rocket leaders and Giovanni better odds than Grunts.

The most Pokémon and item storage you can buy each went up by 500 for the start of Road to Kalos.

A new Mega Level above Max, reached by spending Mega Energy. Mega Victreebel, Mega Malamar and Mega Dragonite were the first that could reach it.

Mega Raids can be entered in person with Link Charges, a new resource, or a Premium Battle Pass. Super Mega Raids arrived for groups of at least eight Trainers; joining one remotely takes a Remote Raid Pass plus Link Charges.

A friendship level above Best Friends that allows trading without meeting in person. The friend limit is rising from 450 to 650, 50 at a time.

Groups of friends, anywhere, work on a shared weekly task for rewards.

The number of Gym badges kept on your map went from 1,000 to 2,000. It was only mentioned to Community Ambassadors.

The level cap went from 50 to 80 with a rebalanced XP curve, and a new Daily Adventure Egg was added.

The wait before you can switch Pokémon again went from 50 to 45 seconds in GO Battle League, friend battles, Team GO Rocket battles and team leader battles.

A Gold Bottle Cap starts Hyper Training, which raises a Good Buddy or better Pokémon's HP, Attack and Defense.

Starting with GO Pass: June, the monthly GO Pass became available to Trainers worldwide.

Shadow Raids opened to Remote Raid Passes and the daily Remote Raid limit went from 5 to 10. From May 19, Max Battles could be joined remotely and the Max Particle cap rose from 1,000 to 1,500.